Well Aer Lingus have an advertising campaign in the London area, it's just print and radio at the moment. I've seen at least one advert everyday in the local papers and last night the ITV news showed a group of people huddled under a bus shelter with an Aer Lingus advert for glowing in the dark beside them. A TV campaign is due to start probably next month and everyone who has signed up for email offers will have been sent an email with details about fares from LGW yesterday. Aer Lingus will need to do more and keep it up throughout the Spring.
Taking a quick look at the Aer Lingus website shows that Malaga, Faro and even Knock seem quite popular with increased fares and busier seat maps on a number of dates.
Easyjet has launched three new routes from Gatwick in direct competition with Aer Lingus. Munich, Vienna and Zurich will start in early April but Aer Lingus is offering lower fares.